Double Tank Solar Water Heater

Water heating is a thermodynamic process using an energy source to heat water above its initial temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry, both hot water and water heated to steam have many uses.

An appliance for supplying hot water for purposes other than space heating or pool heating.

a base hit on which the batter stops safely at second base; "he hit a double to deep centerfield"

Consisting of two equal, identical, or similar parts or things

Designed to be used by two people

Having twice the usual size, quantity, or strength

having more than one decidedly dissimilar aspects or qualities; "a double (or dual) role for an actor"; "the office of a clergyman is twofold; public preaching and private influence"- R.W.Emerson; "every episode has its double and treble meaning"-Frederick Harrison

Solar is an American fictional comic book character. Originally known as Doctor Solar, Man of the Atom, he first appeared in a comic book published by Gold Key Comics in the 1960s.

"Solar" is a musical composition attributed to Miles Davis on the studio album Walkin', considered a modern jazz standard. There is disagreement concerning the exact pronunciation of the tune (|?sol?r| or |?solar|).

relating to or derived from the sun or utilizing the energies of the sun; "solar eclipse"; "solar energy"